Hi,
my main computer runs on a 7x SSD BTRFS as rootfs with
data:RAID1 and metadata:RAID10.
One SSD is probably about to fail, and it seems that BTRFS fixed it
nicely (thanks everyone!)
I decided to just post the ugly details in case someone just wants to
have a look. Note that I tend to interpret the btrfs de st / output as
if the error was NOT fixed even if (seems clearly that) it was, so I
think the output is a bit misleading... just saying...
-- below are the details for those curious (just for fun) ---
scrub status for [YOINK!]
scrub started at Fri Nov 2 17:49:45 2018 and finished after
00:29:26
total bytes scrubbed: 1.15TiB with 1 errors
error details: csum=1
corrected errors: 1, uncorrectable errors: 0, unverified errors: 0
btrfs fi us -T /
Overall:
Device size: 1.18TiB
Device allocated: 1.17TiB
Device unallocated: 9.69GiB
Device missing: 0.00B
Used: 1.17TiB
Free (estimated): 6.30GiB (min: 6.30GiB)
Data ratio: 2.00
Metadata ratio: 2.00
Global reserve: 512.00MiB (used: 0.00B)
Data Metadata System
Id Path RAID1 RAID10 RAID10 Unallocated
-- --------- --------- --------- --------- -----------
6 /dev/sda1 236.28GiB 704.00MiB 32.00MiB 485.00MiB
7 /dev/sdb1 233.72GiB 1.03GiB 32.00MiB 2.69GiB
2 /dev/sdc1 110.56GiB 352.00MiB - 904.00MiB
8 /dev/sdd1 234.96GiB 1.03GiB 32.00MiB 1.45GiB
1 /dev/sde1 164.90GiB 1.03GiB 32.00MiB 1.72GiB
9 /dev/sdf1 109.00GiB 1.03GiB 32.00MiB 744.00MiB
10 /dev/sdg1 107.98GiB 1.03GiB 32.00MiB 1.74GiB
-- --------- --------- --------- --------- -----------
Total 598.70GiB 3.09GiB 96.00MiB 9.69GiB
Used 597.25GiB 1.57GiB 128.00KiB
uname -a
Linux main 4.18.0-2-amd64 #1 SMP Debian 4.18.10-2 (2018-10-07) x86_64
GNU/Linux
btrfs --version
btrfs-progs v4.17
dmesg | grep -i btrfs
[ 7.801817] Btrfs loaded, crc32c=crc32c-generic
[ 8.163288] BTRFS: device label btrfsroot devid 10 transid 669961
/dev/sdg1
[ 8.163433] BTRFS: device label btrfsroot devid 9 transid 669961
/dev/sdf1
[ 8.163591] BTRFS: device label btrfsroot devid 1 transid 669961
/dev/sde1
[ 8.163734] BTRFS: device label btrfsroot devid 8 transid 669961
/dev/sdd1
[ 8.163974] BTRFS: device label btrfsroot devid 2 transid 669961
/dev/sdc1
[ 8.164117] BTRFS: device label btrfsroot devid 7 transid 669961
/dev/sdb1
[ 8.164262] BTRFS: device label btrfsroot devid 6 transid 669961
/dev/sda1
[ 8.206174] BTRFS info (device sde1): disk space caching is enabled
[ 8.206236] BTRFS info (device sde1): has skinny extents
[ 8.348610] BTRFS info (device sde1): enabling ssd optimizations
[ 8.854412] BTRFS info (device sde1): enabling free space tree
[ 8.854471] BTRFS info (device sde1): using free space tree
[ 68.170580] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0x2e395164 expected csum 0x6514b2c2 mirror 2
[ 68.185973] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0x2e395164 expected csum 0x6514b2c2 mirror 2
[ 68.185991] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0x2e395164 expected csum 0x6514b2c2 mirror 2
[ 68.186003] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0x2e395164 expected csum 0x6514b2c2 mirror 2
[ 68.186015] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0x2e395164 expected csum 0x6514b2c2 mirror 2
[ 68.186028] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0x2e395164 expected csum 0x6514b2c2 mirror 2
[ 68.186041] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0x2e395164 expected csum 0x6514b2c2 mirror 2
[ 68.186052] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0x2e395164 expected csum 0x6514b2c2 mirror 2
[ 68.186063] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0x2e395164 expected csum 0x6514b2c2 mirror 2
[ 68.186075] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0x2e395164 expected csum 0x6514b2c2 mirror 2
[ 68.199237] BTRFS info (device sde1): read error corrected: ino
3247424 off 36700160 (dev /dev/sda1 sector 244987192)
[ 68.202602] BTRFS info (device sde1): read error corrected: ino
3247424 off 36704256 (dev /dev/sda1 sector 244987192)
[ 68.203176] BTRFS info (device sde1): read error corrected: ino
3247424 off 36712448 (dev /dev/sda1 sector 244987192)
[ 68.206762] BTRFS info (device sde1): read error corrected: ino
3247424 off 36708352 (dev /dev/sda1 sector 244987192)
[ 68.212071] BTRFS info (device sde1): read error corrected: ino
3247424 off 36720640 (dev /dev/sda1 sector 244987192)
[ 68.217220] BTRFS info (device sde1): read error corrected: ino
3247424 off 36716544 (dev /dev/sda1 sector 244987192)
[ 68.229984] BTRFS info (device sde1): read error corrected: ino
3247424 off 36724736 (dev /dev/sda1 sector 244987192)
[ 68.231579] BTRFS info (device sde1): read error corrected: ino
3247424 off 36728832 (dev /dev/sda1 sector 244987192)
[ 68.231725] BTRFS info (device sde1): read error corrected: ino
3247424 off 36732928 (dev /dev/sda1 sector 244987192)
[ 68.231772] BTRFS info (device sde1): read error corrected: ino
3247424 off 36737024 (dev /dev/sda1 sector 244987192)
[ 912.685787] btrfs_print_data_csum_error: 23 callbacks suppressed
[ 912.685792] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xb9ad3e35 expected csum 0x6514b2c2 mirror 2
[ 912.686107] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xb9ad3e35 expected csum 0x6514b2c2 mirror 2
[ 912.686335] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xb9ad3e35 expected csum 0x6514b2c2 mirror 2
[ 912.695110] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xb9ad3e35 expected csum 0x6514b2c2 mirror 2
[ 912.695138] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xb9ad3e35 expected csum 0x6514b2c2 mirror 2
[ 912.695150] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xb9ad3e35 expected csum 0x6514b2c2 mirror 2
[ 912.695162] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xb9ad3e35 expected csum 0x6514b2c2 mirror 2
[ 912.695173] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xb9ad3e35 expected csum 0x6514b2c2 mirror 2
[ 912.695185] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xb9ad3e35 expected csum 0x6514b2c2 mirror 2
[ 912.695225] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xb9ad3e35 expected csum 0x6514b2c2 mirror 2
[ 912.737998] BTRFS info (device sde1): read error corrected: ino
3247424 off 36753408 (dev /dev/sda1 sector 244987192)
[ 912.747407] BTRFS info (device sde1): read error corrected: ino
3247424 off 36810752 (dev /dev/sda1 sector 244987192)
[ 912.755449] BTRFS info (device sde1): read error corrected: ino
3247424 off 36782080 (dev /dev/sda1 sector 244987192)
[ 912.758745] BTRFS info (device sde1): read error corrected: ino
3247424 off 36720640 (dev /dev/sda1 sector 244987192)
[ 912.759945] BTRFS info (device sde1): read error corrected: ino
3247424 off 36728832 (dev /dev/sda1 sector 244987192)
[ 912.768136] BTRFS info (device sde1): read error corrected: ino
3247424 off 36724736 (dev /dev/sda1 sector 244987192)
[ 912.776749] BTRFS info (device sde1): read error corrected: ino
3247424 off 36716544 (dev /dev/sda1 sector 244987192)
[ 912.784312] BTRFS info (device sde1): read error corrected: ino
3247424 off 36704256 (dev /dev/sda1 sector 244987192)
[ 912.784456] BTRFS info (device sde1): read error corrected: ino
3247424 off 36790272 (dev /dev/sda1 sector 244987192)
[ 912.784519] BTRFS info (device sde1): read error corrected: ino
3247424 off 36798464 (dev /dev/sda1 sector 244987192)
[ 1298.747500] btrfs_print_data_csum_error: 7 callbacks suppressed
[ 1298.747505] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xe7cb8d8c expected csum 0x6514b2c2 mirror 2
[ 1298.747529] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xe7cb8d8c expected csum 0x6514b2c2 mirror 2
[ 1298.748379] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xe7cb8d8c expected csum 0x6514b2c2 mirror 2
[ 1298.763245] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xe7cb8d8c expected csum 0x6514b2c2 mirror 2
[ 1298.763264] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xe7cb8d8c expected csum 0x6514b2c2 mirror 2
[ 1298.763290] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xe7cb8d8c expected csum 0x6514b2c2 mirror 2
[ 1298.763305] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xe7cb8d8c expected csum 0x6514b2c2 mirror 2
[ 1298.763320] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xe7cb8d8c expected csum 0x6514b2c2 mirror 2
[ 1298.764537] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xe7cb8d8c expected csum 0x6514b2c2 mirror 2
[ 1298.764560] BTRFS warning (device sde1): csum failed root 3760 ino
3247424 off 125434560512 csum 0xe7cb8d8c expected csum 0x6514b2c2 mirror 2
[ 1298.788874] BTRFS info (device sde1): read error corrected: ino
3247424 off 36704256 (dev /dev/sda1 sector 244987192)
[ 1298.795023] BTRFS info (device sde1): read error corrected: ino
3247424 off 36728832 (dev /dev/sda1 sector 244987192)
[ 1298.804992] BTRFS info (device sde1): read error corrected: ino
3247424 off 36753408 (dev /dev/sda1 sector 244987192)
[ 1298.819343] BTRFS info (device sde1): read error corrected: ino
3247424 off 36724736 (dev /dev/sda1 sector 244987192)
[ 1298.824461] BTRFS info (device sde1): read error corrected: ino
3247424 off 36732928 (dev /dev/sda1 sector 244987192)
[ 1298.827573] BTRFS info (device sde1): read error corrected: ino
3247424 off 36720640 (dev /dev/sda1 sector 244987192)
[ 1298.935345] BTRFS info (device sde1): read error corrected: ino
3247424 off 36712448 (dev /dev/sda1 sector 244987192)
[ 1298.935474] BTRFS info (device sde1): read error corrected: ino
3247424 off 36794368 (dev /dev/sda1 sector 244987192)
[ 1298.935583] BTRFS info (device sde1): read error corrected: ino
3247424 off 36790272 (dev /dev/sda1 sector 244987192)
[ 1298.935690] BTRFS info (device sde1): read error corrected: ino
3247424 off 36806656 (dev /dev/sda1 sector 244987192)
[ 1326.930851] BTRFS warning (device sde1): checksum error at logical
4996352077824 on dev /dev/sda1, physical 125433442304, root 3760, inode
3247424, offset 36700160, length 4096, links 1 (path: seamonkey/libxul.so)
[ 1326.930862] BTRFS error (device sde1): bdev /dev/sda1 errs: wr 0, rd
0, flush 0, corrupt 1, gen 0
[ 1326.988294] BTRFS error (device sde1): fixed up error at logical
4996352077824 on dev /dev/sda1
btrfs de st /
[/dev/sde1].write_io_errs 0
[/dev/sde1].read_io_errs 0
[/dev/sde1].flush_io_errs 0
[/dev/sde1].corruption_errs 0
[/dev/sde1].generation_errs 0
[/dev/sdc1].write_io_errs 0
[/dev/sdc1].read_io_errs 0
[/dev/sdc1].flush_io_errs 0
[/dev/sdc1].corruption_errs 0
[/dev/sdc1].generation_errs 0
[/dev/sda1].write_io_errs 0
[/dev/sda1].read_io_errs 0
[/dev/sda1].flush_io_errs 0
[/dev/sda1].corruption_errs 1 **** <- Look ma! here I am!
[/dev/sda1].generation_errs 0
[/dev/sdb1].write_io_errs 0
[/dev/sdb1].read_io_errs 0
[/dev/sdb1].flush_io_errs 0
[/dev/sdb1].corruption_errs 0
[/dev/sdb1].generation_errs 0
[/dev/sdd1].write_io_errs 0
[/dev/sdd1].read_io_errs 0
[/dev/sdd1].flush_io_errs 0
[/dev/sdd1].corruption_errs 0
[/dev/sdd1].generation_errs 0
[/dev/sdf1].write_io_errs 0
[/dev/sdf1].read_io_errs 0
[/dev/sdf1].flush_io_errs 0
[/dev/sdf1].corruption_errs 0
[/dev/sdf1].generation_errs 0
[/dev/sdg1].write_io_errs 0
[/dev/sdg1].read_io_errs 0
[/dev/sdg1].flush_io_errs 0
[/dev/sdg1].corruption_errs 0
[/dev/sdg1].generation_errs 0
